Discharge chute and deflector



May 1930. Q j DAN|EL v 1,759,807

DISCEARGE CHUTE AND DEFLECTOR i'iied June 23, 1928 I Q 7 Qwucntm eats Ma 20,, 193 1 7 i 7' Joan DANiEL; oF'

s I ""ni SiC HARGE U'TE A n,nnrincron Application filed .Tune '23,

' V This invention-hastedol' with"the nd concrete mixing machines and more particu? larly aims at the provision of novelimprovements in the 'dischargemeans conventionally employed in conjunction with mixing drums ofthe constantly ;rotatin g typje.

; Itisalmost universal practice inithisi-art,

make use'of a discharge chute which is moved into and out ofdischarging'; positionf'either under manual effort orj 'by the application of power thereto'nHowever, this operation of v the discharge chute; is carriedout only with. a

considerable expenditure 'ofaenergy, ,this,;be-' ing true partially on'-accountiof'the'action of the aggregates beingmixed-insidethe mixing 'drumon the chute; Y

An object. in view is the provision of means for making possible the operationthe'dis-' charge chute as aboye' note'd,,with a'mmimum expenditure of work and effort; :In carrying out this idea, I avail myself ofja pivoted chute and employ in connection therewith counter? balancing means :so thatlin any 7 position, the] discharge chute' isfalways counter-balanced V the former, itais notlnecessaryto do so} against by the means aforesaid, and iniorder" tomove the f orce' of gravity, thislastnamed element.

being discounted" by' the counter-balancing V arrangement c l-tli's "co'nv entional practi'cekin this art to make use of the 'dischargechute asa-osealing device-for the discharge opening of the mixing drum when the latter lis being rotated for mixing action. Under {these conditions the discharge chute is moved iinto'a position wherein it partially-closes this lopening: and

, in which position aggregates thrown. thereon are passed back into the drum'.;' Thislinvention contemplates the provision of a discharge chute of this character' with which associated a supplemental sealing device for closing the discharge opening of the drum during mixing action, and which device 'iszmovable coincident -with movement Got the vdischarge chute into operative positi'on i out' of Zisealing position to permit discharge f the contents of the drum. I In carry-ing out thisidea'in a practicalembodiment of my'invention, I avail myself of a member which islof substantially 192s. Serial No. 287,677. 7

with the discharge chute by-toggle connecmrLwAnKnn, Wisconsin, 'AssI noR s 'ro" konirnmq f COMPANY, 01* m'r wAUnEE,wrsoonsrmjA conronn'rron I and member is operatively connected 1 tions-softhatit is'movable coincident there- 1 i with and which member furthermore assumes a;,pos'ition wherein it functions as an awning or. canopy that seals the discharge vopening and the discharge chute during mixing oper v ationsofthe mixing drum.

' 'It is a noteworthy feature ofmy invention thatthe sealing device noted in the preceding paragraph" also constitutes the counter-bal-T v ancm'g meanshereinbefore specified. It .is

apparent, therefore,that not only is, a dis! charge chute-provided which is movable-into dlschargmg and non-discharging positions with littleor no effort, but which also affords dischargeopening.V r

a heretofore unobtainable sealing effect at the A somewhat more detail d jbj 'f 1 7 -V vention is to provide means for limiting the movement the discharge chute into. andoutof, discharging position, In view" of the counter-balancing arrangemetprovided hereby, it is'of essential importance that suitable means be included in the construction tozin-r h blt uncalled for movements ofthe parts in eltherjdlr'ection, and to this end the construe:-

tion includesa bar member whichjacts as a limiting, means for movement of the discharge chute into non-dischargingposition while'certain' portions of the toggle arrangement function -to' limit movement; in the 0p- POsite direction. 1

v Withthese and other objects andadvantages in vi-ewuas will in part become apparent and in. partpbe hereinafter vstated, theiinventio'n 5-" I comprises certain novel constructions, "combi'e" nat ons, and arrangements ofparits as willbe subsequently specified and claimed.

; For a full'and more complete understand- 1 mg ofthe invention, reference may beha'd to the following description and accompanying I drawings, in which; Figurell-is a'view 7 novel discharge chute device as applied to; a mixing drum, the showing of the-latter being fragmentary and partially in 'sectionf'dis-o inside elevation'of'my charging position being brought out bythe i full lines with the dotted lines indicating l '1 appended-claims;

' Referring now to Figure is a front iviewoi deviee as [appliedto a mixing drum when indischarg- POSitiOn f Mixing drurnB isprovided witha discharge flangegor lip"construction shown at 1. A bar lrnost point of the opening B and its' endsf are a. f journa'led in b'earing elelnents Theselast fnar nediparts are shown in dottedlinesjin Fig ureLQJ'jA-t opposite} ends emhe bar 2 5 are f shaped hanger memberstwhichhave rigidly 'afli xdtheretoiat their; upperend adj acent; to

I their'ipivotal mountings, plates 5 which are in l V "effect "integral (with 7 these angular hanger linendbers. iAfroller'lnember 6 is c'arrie'dby an axial 'supportingiishaft '7? andlis disposed to lie in the crotch of the. n1e1nbers'4 Whenfthe 5 latteris s ungg wa dl and this manner e constitutes a-llmltlng. meansfor; inner IDOXQ: mento'fthese'hangers;'1'

' :The hangers iearry rigid atltheir lower ex tremitfiadischargefchute i8fwhich is of con 'rnent-indieatedvgatflg V v V I 7 The framework; 'A 'has mountedfi'thereon at the upper portion "thereof; "bracket 'niemr bers 1 0"'which areofisetfiinwardly a'sclearly V shown' in Figure 2 to provide ears 11. Fiv

oted to theseears 11] are the ends of toggle constructions comprisingin one instanee arms V i 50 the'othe'r side of the machine aduplicate eon- V struction; The arms jl2-and 13ja-re pivotally "JjOiIlQd at l4=byfa cross bar l5jwhich extends 1 transversely and constitutes a like pivotal 7 connection with-t'hetoggle on the other side 7 r of the machine,- fThis'bar-flalso functions to render the two toggle constructions unitary ig- ;ventional'g trough likeiconstruction. This chute 8j rigidl supported between the hangejrsff4 and attached'thereto in anysuitable "manner such as theboh:

l2and13 011 0116 side of the machine and on landftheir i operation simultaneous, The free 7 'end.:of:'the bar 13-1 pivotally "connected to fth'e plate 5' as shown at 16, and itisapparent thatmovementofthe'platest5 will cause op.-

erations' of 1 the toggles coinprising members 12and13."

V i .A counter balancingjandsealing rnember is is.supportedibetweenthe toggle's'at their-piv While a'rpreferre'd specific embodiment of the invention is ""herein set 1 forth; it is to be v undrstoodfth atl not to 'be-lirnitedjto the exact constructions illustrated and de:

a scribed because variousmodifications of these;

' details-may beg'providedin putting the inven-v tion into" practice with in the purYiew ofthe ,7 s

' ing"device hereinbefore described is thought r to be almost selfievidenta 'With the discharge; chute iii full line'positionof Figure 1, it is f noted that-the member 17 fdoes no't in any way 1 the'drawingsya portion? 7 of the' frame work ofa mixin'gimachinefis shown in' Figure 1 and;designated-Qbyjthe reference character A. V This framework r0 7 V "-tatably supports "a'lnixingrdruln shown-frag-i mentarily at'rB in any well" known'mann'er'.

or rivet arrange- V 0e11, connection 14 bythe' bar 15 ethe end extends between the roller 6 andbar 2 f which last named parts :control and; guide}: I

Thi s'rnember 17, isot SQ eWhat the movement of. the discharge chute '8' may be provided such as, a handle "indifii fiecl M118 j Theo operation' of the discharge and'iseal f obstruct the flow of aggregates onto the chute 8;" {Uponimovement-ofthedischargefehuteif1 8' into "itheldottecl line "position of Figure '1' 7 whieh is,causedbymanual'operationthrough V, the medium of the handle 18 andwhi'ch opera tion isi rendered "easyfan'd not entailingxan undue expensefot eflort Jon account of. the counterbalancingeffect providedbyihe Qchute v ,17 which during sueh'movernentof the chute 7, 8 a'gainstfthefforce{of gravity-,aiallsj* under the influenceiof gravity into the dotted: line 1 7 position offFigure 1, -:its:assuinption of; this positionbeing'duejto' the togg le construction" 1, '12 and 13 a-nditheguidingnieans in the torm I got the bar 2 and roller16Lif-In'thisfdott' cl line' position5 it is noted that therhelnber func tions as an awning forthedischargeiopening; f

C and prevents any" aggregates 'beingl'mixed; a

any .marinen;

dotted line: p-ositionof Figure l,.lthis member is "showni extending: intofthe mixing drum-f 'fronifalling ontothediseharge-ohute'fi; or'inj' taetjfrom'passing through theopenin'g Ciini, a 1 s It also important'toi note that "t'hejcom I 1 b natl'on counterbalaneing andgsealing .mernber :17 alsohasanotherifunction," "In the i .thedischarge chute and the counterbalancing andsealing member cooperate in such a man' P7 ner that as the discharge.chute movesjtoi-non" discharging position, the sealinglmelnberi aids vances over the-mouth'of the discharge "chute". f tocut"ofl'fthe supplyof aggregatesthereto; I i In other words", there isia relation between V "j the dischargefchuteandsealin'g meanswheree f byrthef degree to fwhio'hqthe aggregates are prevented irom: enteringgthe discharge chute 'f is dependent upon-the positio'rrof the dis: '7 v 120 i ranges from no preventione'at,iallwhengtheff Q dischargechuteis in diseharge position; to

charge chute at that particular instant "and complete 1 prevention when the *diseharg chute-is in non-discharge positioni gi Having. thus ,Vdescrib d my invention}; wha

I clairnas "new and desire to 'segure :by- V et- I ters Patent oi-the =United, StatesQisf 1 j 1 j 1 1] *Th 'i n nb n t W Iam X'n "d m f 1 of the' constantly rotating type having :a dis charge opening of adiseharge devieethere fore including counter-balancing. means for minimizing the effort'necessary to operate the discharge device and which counter-bal-' ""ancing'means alsoconstitutes a sealing device for thedischarge opening of the drum.

\ ,2. The combination with amixing drum r having discharge opening, of a discharge I device for the opening adaptedtoimov'e: into discharging and non-dischargingpositions,

1O isaidf device including counter-balancing; means, and means for limltingi'the movements of-theparts of the device in 'oppo'siteidirem tions, one of said means constituting afguiding member for the counter-balancing means,

said member comprising a roller mounted on r hanger members and adapte'd to move into discharge and non-discharge positions, means vice guided by said last namedflmeans; and adapted to moveinto the mixing drum, a

; for limiting the movement of the discharge,

chute into discharge position, a sealing'desupporting member pivoted to the frame;

aforementioned and to the sealing device,

and meansxfor causing the sealing device to v v 7 move intoand out of the mixing. drum incident to movement of the discharge chute.

In'testimony whereof I aifix my signature.

- JOHN, DANIEL.

members and adapted to assume discharging 1 and non-discharging positions, means for limiting movement of the discharge chute,

and counter-balancing means for minimizing the efforts necessary to-operate thedischarge chute, and which 4 counter-balancing: means also constitutes a sealing device forathe discharge opening. H ,7 u ,j

4. A discharge,devicefof the classf' def scribed, comprising, in: combinatioma mixing drum having a discharge opening, ,apivotal- 1y mounted discharge chute movable into discharging and non-discharging positions a member operativelyrconnected with the discharge chute and movable coincident with movements of thelatter, saidmemb'er being connected with the discharg'echuteby toggle I constructions and constituting asealing device for, the discharge opening.

' "5; The combination with a mixing drum 7 having a discharge opening-{of adischarge.

device therefor, andcounter-balancingmeans for the discharge device, the counter-balancing means being" adapted to move into the mixing drum' and participate" in the mixing function of the latter.

' ,GJThe combination with a mixing" p having a discharge opening, ofa -discharge I device movable into discharge and non-discharge positions, asealing means therefor, v

means to move. the sealingf-means-into the drumover the end ofithe discharge device 1 incident to movement offltheljdischarge device from discharge to non-discharge posiztions,'and means to holdthe'jsealing mea s in the drum so as tocon'stitute afmixingmem- I her that helps mix the materials in the drum 7 when in sealing position I 7. A discharge device of scribed, comprising-in combination, a mixing drum having a discharge opening, hanger members pivoted zto' the frame of Ta; mixing machine, a discharge. chute: carried the the class de- 

